Hackett, Jay K.  <br/><br/>
Merrill Science / 
Jay K Hackett,  Richard H Moyer, Donald K Adams. 
 - USA :  Merrill Publishing Co,  1989. 
 - 248 p.:  ill. ;  26cm. 
<br/><br/>
<br/><br/><label>ISBN: </label>0675035120 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science -- Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>500/ H118m